Marcos Roberto Kunzler

Universidade Federal do Pampa (Unipampa) | UNIPAMPA · Department of Physical Education

Physical and cognitive exercises have positive long-term effects on cognitive capacities. However, acute effects still are controversial. Here we determine the acute effects of physical exercise combined with concurrent cognitive exercise on cognitive performance in young adults. Simple reaction time, selective attention, and memory were evaluated...

Compression and temperature manipulation are discussed as strategies to improve performance markers and recovery in sports. Here, we investigate the effects of compression stockings made with fabric, either combined or not with heating and cooling substances, on variables related to running performance and recovery. Ten trained runners (mean ± stan...

The Short-Time Fourier transform (STFT) is a helpful tool to identify muscle fatigue with clinical and sports applications. However, the choice of STFT parameters may affect the estimation of myoelectrical manifestations of fatigue. Here we determine the effect of window length and overlap selections on the frequency slope and the coefficient of va...

Pedaling asymmetry is claimed as a factor of influence on injury and performance. However, the evidence is still controversial. Most previous studies determined peak torque asymmetries, which in our understanding does not consider the pattern of movement like torque profiles. Here we demonstrate that asymmetries in pedaling torque at different exer...

Programming is an important skill for different areas of knowledge. While in the past programming skills were much related to fields of computer sciences and engineering, today, professionals from different areas benefit from the ability to write codes for different applications. Furthermore, programming stimulates logical thinking, which impacts o...

Objective To verify whether Timed Up & Go (TUG) performance correlates with foot clearances in different conditions of obstacle crossing. Methods Thirty older women were assigned to a group with or without risk of falls classified by TUG. Three-dimensional kinematics of walking with obstacles was recorded. Results For those without risk, TUG did...

Delayed onset muscle soreness (DOMS) indicates the presence of muscle damage and impairs force production and control. Monitorization of DOMS is useful to improving recovery intervention plans. The magnitude of DOMS may relate to muscle fatigue, which can be monitored by surface electromyography (EMG). Additionally, growing interest has been expres...

Pedestrian injuries related to the use of cell phone have increased in relation to the total number of pedestrian accidents. The aim of this study was to compare kinematic and electromyographic variables in both lower limbs at facing an obstacle, with (WC) and without (WoC) the use of a cell phone. Ten young women were evaluated while walking and f...

Intense exercise promotes long-term gains in cognitive functions. On the other hand, intense exercise may result in acute effects not clearly determined for cognitive performance. A condition of stochastic intensity ranging from moderate to maximal efforts is part of sports like cycling, in which cognitive integrity is also important for fast decis...

The application of surface electromyography (sEMG) in neurology is sometimes limited by the scientific background regarding the use of sEMG. The students frequently will use sEMG only when developing graduate studies. To reduce these barriers we promoted a free Winter School on sEMG to Latin American students. The school was a 3-days event with the...

Barefoot running has gained popularity among physical activity practitioners, but there is a lack of information regarding the acute adaptations to this running technique without supervision. Information about acute adaptations can help to define the best way to insert barefoot running in the routine of runners willing to, and also provide orientat...

Introdução: No cotidiano diário somos cada vez mais expostos a realização de tarefas simultâneas, em uma condição de dupla tarefa. Nessas situações dizemos que há a interferência de uma tarefa sobre outra. A dupla tarefa pode influenciar o tempo para respostas motoras, o que pode ser um limitante para ações físicas em idosos. Objetivo: Determinar o...

Objective: Measurement of skin temperature using infrared thermography has become popular in sports, and has been proposed as an indicator of exercise-induced muscle damage after exercise. However, the relationship between skin temperature and exercise-induced muscle damage is still unclear. Here we set out to investigate the relationship between...

Escola para ensino de conceitos fundamentais de processamento de sinais discretos em biomecânica. Todas as aulas disponíveis no youtube: https://www.youtube.com/playlist?list=PLFhTJITcYZ5ehXxyJ0caypDjbCDxUZc2y

Background: Effects of exercise on foot clearances are important. In older adults variations in foot clearances during walking may lead to a fall, but there is a lack of information concerning stair negotiation in older adults. Whether a condition of post exercise changes foot clearances between steps of a staircase in older adults still unknown....

Infrared thermography presents some important advantages in the determination of skin temperature, as it is a safe, non-invasive and non-contact technique with wide applications in the field of sports sciences. Like many others techniques, valid measurement in thermography requires following strict methodological steps from data acquisition to anal...

Walking is one of the preferred exercises among elderly, but could a prolonged walking increase gait variability, a risk factor for a fall in the elderly? Here we determine whether 30 min of treadmill walking increases coefficient of variation of gait in elderly. Because gait responses to exercise depend on fitness level, we included 15 sedentary a...

While teaching biomechanics for undergraduate students, some characteristics of the Olympic games were used to create the “Biomechanics Olympic Games”, an educational project, included in the regular course. The project is developed along the academic semester and involves different activities, identified with the philosophy of Olympic modalities,...

Background: In negotiating stairs, low foot clearance increases the risk of tripping and a fall. Foot clearance may be related to physical fitness, which differs between active and sedentary participants, and be acutely affected by exercise. Impaired stair negotiation could be an acute response to exercise. Here we determined acute changes in foot...

Purpose. Increased contact pressure and skin friction may lead to higher skin temperature. Here, we hypothesized a relationship between plantar pressure and foot temperature. To elicit different conditions of stress to the foot, participants performed running trials of barefoot and shod running. Methods. Eighteen male recreational runners ran shod...

RESUMO A prática regular de caminhada pode tornar a população mais ativa fisicamente. Buscamos relatar as atividades desenvolvidas com praticantes de caminhada em ambientes públicos de lazer em Uruguaiana-RS. Os participantes foram entrevistados, avaliados fisi-camente, e divididos em faixas etárias. Resultados sugerem que idosos têm maior frequênc...

Running is a popular sport performed at different places and involving different distances and modalities. Long distance running promotes cumulative loading on joints and soft tissues that could determine important biomechanical alterations. A tool for assessing such loads is the measurement of plantar pressure. Here we compared static plantar pres...

RESUMO:Embora com aplicações diversas, a Biomecânica do Movimento Humano é geralmente reconhecida na Educação Física (EF) pela sua importância no contexto do esporte. O processo de ensino-aprendizagem da biomecânica deve dar o embasamento necessário para a compreensão das leis da física aplicadas ao movimento, mas também no contexto da escola duran...

It has been suggested that skin stimulation using tape glued to the skin over the Achilles tendon helps to improve postural control. It was recently shown that these effects might emerge only after muscle fatigue and not during non-fatigue standing. Here we tested the influence of skin stimulation on postural control before and after fatigue of ank...

An approach and possible solution is introduced to extend SAP R/3 assisted manufacturing-order processing to a functionally high-standard batch balancing system in line with GMP Standards. The concept is based on the application of the R/3 manufacturing instruction in the PP/PI (Production Planning for Process Industries) module on the one hand, an...